[vtkusers] opengl2 vtk rendering back end and Qt

[David Lonie]

Looks like depth testing isn't working. Does your context have a depth
buffer?

On Tue, Dec 20, 2016 at 1:50 AM, Róbert Špir <spir.robert at gmail.com> wrote:

> I think you need to set stencil buffer size using these calls
>
>
>
> QSurfaceFormat surfaceFormat = ui->qvtkWidget->windowHandle()->format();
>
> surfaceFormat.setStencilBufferSize(8);
>
> ui->qvtkWidget->windowHandle()->setFormat(surfaceFormat);
>
>
>
> Robert
>
>
>
> *From:* vtkusers [mailto:vtkusers-bounces at vtk.org] *On Behalf Of *Alexandre
> Boucher
> *Sent:* Tuesday, December 20, 2016 6:48 AM
> *To:* vtkusers at vtk.org
> *Subject:* [vtkusers] opengl2 vtk rendering back end and Qt
>
>
>
> Hi All,
>
>
>
> I am having a problem using the opengl2 backend with QVTKWidget (I tried
> Qt 5.4 to 5.7 and vtk 7.0 and 7.1). When looking at a simple vtkImageData
> for instance some of the faces of the grid are not properly displayed, see
> image below.  Everything works fine with the opengl1 backend.
>
>
>
> I also try using QVTKWidget2, but I am getting a crash when the widget
> call OpenGLInitState().
>
>
>
> Is there a trick to use Qt and opengl2?
>
>
>
> Thanks
>
>
>
>
>
>
>
> [image: Inline image 1]
>
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